DE3871212D1 - METHOD FOR TRANSMITTING RADIO SIGNALS AND RADIO TRANSMISSION SYSTEM FOR IMPLEMENTING THE METHOD. - Google Patents
METHOD FOR TRANSMITTING RADIO SIGNALS AND RADIO TRANSMISSION SYSTEM FOR IMPLEMENTING THE METHOD.Info
- Publication number
- DE3871212D1 DE3871212D1 DE8888103247T DE3871212T DE3871212D1 DE 3871212 D1 DE3871212 D1 DE 3871212D1 DE 8888103247 T DE8888103247 T DE 8888103247T DE 3871212 T DE3871212 T DE 3871212T DE 3871212 D1 DE3871212 D1 DE 3871212D1
- Authority
- DE
- Germany
- Prior art keywords
- sections
- signals
- implementing
- communication
- transmission system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 title abstract 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/28—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium using the near field of leaky cables, e.g. of leaky coaxial cables
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Near-Field Transmission Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
The communication system allows bidirections communication between a pair of devices (5) via a number of relay stations (1) between successive sections (2,3) of the communication path. At least one of these sections (2) comprises a cable acting as a transmission and reception antenna. The intermediate relay stations (1) have two opposing amplifiers for equalising the attenuation in the adjacent line section (2). When a radio signal is received the successive sections (2) are switched through one after the other, to allow the signals to be forwarded in the required direction. Simultaneous disconnection of the sections is performed after passage of the relayed communication signals.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8888103247T DE3871212D1 (en) | 1987-03-30 | 1988-03-03 | METHOD FOR TRANSMITTING RADIO SIGNALS AND RADIO TRANSMISSION SYSTEM FOR IMPLEMENTING THE METHOD. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873710455 DE3710455A1 (en) | 1987-03-30 | 1987-03-30 | METHOD FOR TRANSMITTING RADIO SIGNALS AND RADIO TRANSMISSION SYSTEM FOR IMPLEMENTING THE METHOD |
DE8888103247T DE3871212D1 (en) | 1987-03-30 | 1988-03-03 | METHOD FOR TRANSMITTING RADIO SIGNALS AND RADIO TRANSMISSION SYSTEM FOR IMPLEMENTING THE METHOD. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3871212D1 true DE3871212D1 (en) | 1992-06-25 |
Family
ID=6324333
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873710455 Withdrawn DE3710455A1 (en) | 1987-03-30 | 1987-03-30 | METHOD FOR TRANSMITTING RADIO SIGNALS AND RADIO TRANSMISSION SYSTEM FOR IMPLEMENTING THE METHOD |
DE8888103247T Expired - Fee Related DE3871212D1 (en) | 1987-03-30 | 1988-03-03 | METHOD FOR TRANSMITTING RADIO SIGNALS AND RADIO TRANSMISSION SYSTEM FOR IMPLEMENTING THE METHOD. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873710455 Withdrawn DE3710455A1 (en) | 1987-03-30 | 1987-03-30 | METHOD FOR TRANSMITTING RADIO SIGNALS AND RADIO TRANSMISSION SYSTEM FOR IMPLEMENTING THE METHOD |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0284809B1 (en) |
AT (1) | ATE76544T1 (en) |
DE (2) | DE3710455A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU632891B2 (en) * | 1990-01-18 | 1993-01-14 | Andrew Corporation | Distributed amplifier network management system |
FR2659512B1 (en) * | 1990-03-09 | 1994-04-29 | Cogema | MICROWAVE COMMUNICATION FACILITY. |
AU712647B2 (en) * | 1995-11-13 | 1999-11-11 | M.I.M. Holdings Limited | Dual feed mine communication system |
US20090197531A1 (en) * | 2008-02-05 | 2009-08-06 | Magneto-Inductive Systems Limited | Method and system for patching a communication line using magneto-inductive signals |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2645057C2 (en) * | 1976-10-06 | 1985-12-12 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Repeater to regenerate the level in the case of radiating lines |
DE2754455A1 (en) * | 1977-12-07 | 1979-06-13 | Licentia Gmbh | Bidirectional amplifier for radiating lines - has two antiparallel amplifiers whose inputs and outputs are connected to terminals of two couplers |
DE2810691A1 (en) * | 1978-03-11 | 1979-09-13 | Licentia Gmbh | MESSAGE TRANSFER SYSTEM |
CH651432A5 (en) * | 1981-02-06 | 1985-09-13 | Autophon Ag | Radio system with at least one leaky line and two relay devices |
-
1987
- 1987-03-30 DE DE19873710455 patent/DE3710455A1/en not_active Withdrawn
-
1988
- 1988-03-03 AT AT88103247T patent/ATE76544T1/en not_active IP Right Cessation
- 1988-03-03 EP EP88103247A patent/EP0284809B1/en not_active Expired - Lifetime
- 1988-03-03 DE DE8888103247T patent/DE3871212D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0284809B1 (en) | 1992-05-20 |
DE3710455A1 (en) | 1988-10-20 |
EP0284809A1 (en) | 1988-10-05 |
ATE76544T1 (en) | 1992-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8327 | Change in the person/name/address of the patent owner |
Owner name: AEG MOBILE COMMUNICATION GMBH, 7900 ULM, DE |
|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |